I don't know how much $3000 candian is but I would say go for:

AMD FX-55
MSI K8N Diamond Mobo S939,SLI nForce4 SLI,6xSATA2,Creative Live!24bit(I'm not so in to mobos but this is good)
ATI X800XT or wait for the ATI X850 XT.
1024 of corsair RAM
Some S-ATA disk(s) Seagate.
500+ Watt PSU

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